# Q1: With Ohm's law, if voltage increases and resistance stays the same:

A
current remains the same
B
power decreases
C
current increases
D
resistance decreases

A
1/4 watt
B
1/2 watt
C
1 watt
D
2 watts

A
1
B
2
C
3
D
4

A
22 kilohms
B
3300 ohms
C
44000 ohms
D
33 kilohms

# Q5: Wirewound resistors are usually used in circuits that have:

A
high current
B
negative temperature coefficients
C
low power
D
high voltage

# Q6: Resistors are identified as to wattage by:

A
size
B
color code
C
types of materials
D
internal construction

A
metal film
B
wirewound
C
metal oxide
D
thick film

# Q8: A good fuse will have:

A
zero ohms resistance
B
a medium resistance
C
a high resistance
D
an infinite resistance

A
ampere
B
ohm
C
volt
D
watt

# Q10: One problem with mechanically variable resistors is noticeable in audio circuits as:

A
scratchy noise
B
lack of bass response
C
variable volume
D
too much treble response

A
less heat
B
more conductance
C
less resistance
D
more heat

# Q12: How do fixed resistors usually fail?

A
slowly over time
B
by increasing their value
C
by becoming an open circuit
D
by increasing their value and becoming an open circuit

# Q13: What happens to current and resistance if the voltage doubles?

A
Current doubles and resistance doubles.
B
Current doubles and resistance is halved.
C
Current remains the same and resistance doubles.
D
Current doubles and resistance remains the same.

# Q14: Good insulators:

A
have few electrons in their outer shells
B
have a large dielectric strength
C
have a small breakdown voltage
D
have many electrons in the nucleus

# Q15: One advantage of a carbon film resistor over a carbon composition resistor is:

A
less circuit noise
B
smaller size
C
higher wattage
D
poor tolerance

A
aluminum
B
copper
C
gold
D
silver

A
keyed containers
B
size
C
color code
D

A
2.76%
B
27.7%
C
3.60%
D
36.1%

A
1 horsepower
B
1 Btu
C
1 watt
D
1 joule

A
V = IR
B
I = V/R
C
R = IV
D
R = V/I

# Q21: A rheostat is ___.

A
a two-terminal device that controls current
B
a three-terminal device that controls current
C
a two-terminal device that divides voltage
D
a three-terminal device that divides voltage

A
aluminum
B
copper
C
gold
D
silver

A
ohmmeter
B
ammeter
C
voltmeter
D
watt meter

A
200 n
B
5 k
C
200 k
D
5 M

A
10.03
B
22.35
C
45.26
D
71.96

A
1
B
2
C
3
D
4

# Q27: The six basic forms of energy are:

A
light, sun, magnetic, chemical, electrical, and mechanical
B
electrical, mechanical, light, heat, magnetic, and chemical
C
electrical, mechanical, sun, heat, chemical, and light
D
potential, sun, light, chemical, electrical, and mechanical

# Q28: What are the two major categories for resistors?

A
low and high ohmic value
B
commercial and industrial
C
low and high power value
D
fixed and variable

# Q29: What are the parts of a rheostat?

A
wiper and resistor track
B
solenoid and armature
C
contact and wire wound
D
center tape and wiper

# Q30: What property does an incandescent lamp possess?

A
cold resistance
B
hot resistance
C
ballast resistance
D
both cold and hot resistance

# Q31: How is a 3.9 k resistor color-coded?

A
red, white, red, gold
B
red, green, orange, silver
C
orange, white, red, gold
D
orange, green, orange, silver

A
linear
B
defective
C
not wirewound
D
tapered

A
0.026%
B
0.26%
C
2.63%
D
26.3%

# Q34: Good insulators:

A
have few electrons in their outer shells
B
have a large dielectric strength
C
have a small breakdown voltage
D
have many electrons in the nucleus

# Q35: For P = V2/R, a decrease in resistance should produce:

A
a decrease in power
B
an increase in ohms
C
an increase in power
D
a decrease in current

A
insulators
B
conductors
C
resistors
D
heat exchangers

A
12 W
B
1.2 W
C
.12 W
D
12 mW

A
precision
B
SIP
C
general-purpose
D
wirewound

# Q39: If a metallic conductor has a positive temperature coefficient of resistance, then:

A
as temperature increases, resistance decreases
B
as current increases, resistance decreases
C
as voltage increases, current increases
D
as temperature increases, resistance increases

A
V = IR
B
P = VI
C
P = IR
D
I = V/R

A
decrease
B
increase
C
remain the same
D
double

A
vary
B
remain constant
C
increase
D
decrease

# Q43: Which is the most important step utilized when measuring resistors?

A
use the highest possible scale
B
C
zero the meter before using
D
remove power from the circuit

A
9.9
B
10.7
C
16.7
D
17.0

A
1234
B
1235
C
1366
D
1367

A
1/4 watt
B
1/2 watt
C
1 watt
D
2 watts

# Q47: Power is defined as:

A
the rate at which energy is used
B
watts
C
energy
D
the rate at which energy is generated

A
2.4 A
B
240 mA
C
24 mA
D
2.4 mA

# Q49: Good insulators:

A
have few electrons in their outer shells
B
have a large dielectric strength
C
have a small breakdown voltage
D
have many electrons in the nucleus

# Q50: How much energy is stored if 6.24 x 1018 electrons are stored in 4 volts?

A
4 joules
B
1.56 x 1018 electrons
C
1.56 coulombs
D
2.496 x 1019 electrons

# Q51: Electrical equipment is protected against excessive current by a(n):

A
B
insulated glass container
C
metal ended coil
D
circuit opener

A
less resistive
B
cooler
C
brighter
D
more resistive

A
288 kA
B
2 kA
C
50 mA
D
500 A

A
1
B
2
C
3
D
4

# Q55: A conductor's cross-sectional area in circular mils for inch is:

A
500 cmils
B
100,000 cmils
C
1,000,000 cmils
D
500,000,000 cmils

A
26400 ohms
B
24183 ohms
C
6600 ohms
D
39970 ohms

A
10 joules
B
60 joules
C
600 joules
D
3600 joules

A
by resistance
B
by voltage
C
by current
D
by heat

# Q59: What are the two major categories for resistors?

A
low and high ohmic value
B
commercial and industrial
C
low and high power value
D
fixed and variable

# Q60: If a metallic conductor has a positive temperature coefficient of resistance, then:

A
as temperature increases, resistance decreases
B
as current increases, resistance decreases
C
as voltage increases, current increases
D
as temperature increases, resistance increases

# Q61: Resistance in a circuit is:

A
opposition to current
B
opposition to voltage
C
the same as current
D
the same as voltage

# Q62: The power rating of a resistor is __________ related to __________.

A
directly, the type of cooling used
B
indirectly, the type of material used
C
directly, its surface area
D
indirectly, the color coding

# Q63: With Ohm's law:

A
current is inversely proportional to resistance
B
resistance is directly proportional to voltage
C
voltage is indirectly proportional to power
D
current is directly proportional to resistance

# Q64: With a complex circuit, a supply source senses:

A
open circuit components
B
when voltages need to be increased
C
only a single resistive connection
D
when complex currents are needed

A
1.2 amps
B
12000 amps
C
830 mA
D
12 amps

# Q66: Resistance is:

A
the opposition to current flow accompanied by the dissipation of heat
B
symbolized by R, measured in ohms, and directly proportional to conductance
C
directly proportional to current and voltage
D
represented by the flow of fluid in the fluid circuit

A
1
B
2
C
3
D
4

# Q68: Wirewound resistors are usually used in circuits that have:

A
high current
B
negative temperature coefficients
C
low power
D
high voltage

# Q69: The word work means that:

A
energy has been transferred
B
it is inversely related to energy
C
no energy has been transferred
D
work and energy are not related

# Q70: Power is measured in units of:

A
joules x charge
B
joules/work
C
joules x voltage
D
joules/time

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